Getting a Perfect SSL Labs Score

perfect-ssl-labs-score.txt

# openssl dhparam -out /etc/nginx/ssl/dhparam.pem 4096
# vim /etc/nginx/nginx.conf
...
ssl_session_cache shared:SSL:10m;
ssl_session_timeout 10m;
ssl_protocols TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers AES256+EECDH:AES256+EDH:!aNULL;
ssl_stapling on;
ssl_stapling_verify on;
ssl_dhparam ssl/dhparam.pem;
ssl_ecdh_curve secp384r1;

add_header Strict-Transport-Security "max-age=31536000; includeSubdomains";
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
...

server {
    listen 443 ssl;
    # gzip should not be used with ssl
    gzip off;
}